diff --git a/src/blocks/checkpoints.dat b/src/blocks/checkpoints.dat
index 0a710c22..f87862c0 100644
Binary files a/src/blocks/checkpoints.dat and b/src/blocks/checkpoints.dat differ
diff --git a/src/checkpoints/checkpoints.cpp b/src/checkpoints/checkpoints.cpp
index 70f64cc1..c74bc11f 100644
--- a/src/checkpoints/checkpoints.cpp
+++ b/src/checkpoints/checkpoints.cpp
@@ -180,6 +180,8 @@ namespace cryptonote
     ADD_CHECKPOINT(160000, "ed8dcebfd49197f628fd41ae2f9d0e25ba31bfa019216974cfd7aaec804d9f63");
     ADD_CHECKPOINT(170000, "8e5f7e561f9d72ed9caa00ce3c315a4018ebf6618d1064d5f70881d697347eb1");
     ADD_CHECKPOINT(194000, "2f514388e1f42c92c805a6420bb76b9a9e089ed5a437987d4e9442f67291f4db");
+    ADD_CHECKPOINT(250000, "7bcfa027457e9779accc142cb4f757a0b31d2660f8f42ff2e42916d9fdbf3f85");
+    ADD_CHECKPOINT(274000, "e1e267de5a9d80b85824887effe278e925e6619f7ed393f778f8ea89cd49f8c1");
     return true;
   }
 
diff --git a/src/cryptonote_core/blockchain.cpp b/src/cryptonote_core/blockchain.cpp
index 6d94042e..2ceb9883 100644
--- a/src/cryptonote_core/blockchain.cpp
+++ b/src/cryptonote_core/blockchain.cpp
@@ -4253,7 +4253,7 @@ void Blockchain::cancel()
 }
 
 #if defined(PER_BLOCK_CHECKPOINT)
-static const char expected_block_hashes_hash[] = "d09f7dbb7281f3a194d39b9aa3cd152708076e6fe9eef039290b5066eef4e0c0";
+static const char expected_block_hashes_hash[] = "e54dd76f1f9f650f11edc49782d3cca5afc370013cad0cbb27a5bdff0c56cb43";
 void Blockchain::load_compiled_in_block_hashes()
 {
   const bool testnet = m_nettype == TESTNET;
diff --git a/src/version.cpp.in b/src/version.cpp.in
index 99b4875f..251a8f2d 100644
--- a/src/version.cpp.in
+++ b/src/version.cpp.in
@@ -1,5 +1,5 @@
 #define DEF_MONERO_VERSION_TAG "@VERSIONTAG@"
-#define DEF_MONERO_VERSION "0.2.4.3"
+#define DEF_MONERO_VERSION "0.2.4.4"
 #define DEF_MONERO_RELEASE_NAME "Classy Caiman"
 #define DEF_MONERO_VERSION_FULL DEF_MONERO_VERSION "-" DEF_MONERO_VERSION_TAG